you are seeing what i would expect if there were: 1. a source of harmonics after the stubs, on the tower, near the tower, etc. 2. a leak between the radio and stub that radiates the harmonic before t
that is great for long haul stuff, but the purpose of bpl is for the 'last mile'... getting from a service point like a phone central office to the home. while it would be nice to run coax or fiber t
Contrary to what others have said... get the heaviest, thickest rope you can slide into the element and still have room for it to flop around. I like a tight nylon braid or old hemp/sisal because its
and construction, What is really fun with bad vibration cases is that the element tips fatigue and break off. I have had that happen with both the newer telrex designs and cushcraft... no double hos
Can you clue us all in on how to build elements that don't vibrate? David Robbins K1TTT e-mail: mailto:k1ttt@arrl.net web: http://www.k1ttt.net AR-Cluster node: 145.69MHz or telnet://dxc.k1ttt.net
and construction, What is really fun with bad vibration cases is that the element tips fatigue and break off. I have had that happen with both the newer telrex designs and cushcraft... no double hos
First, please lets not start the 'find true north' thread again... ok everyone???? Second, its really not that critical unless you are going to do microwave grid hunting. Now, the easiest way I have
for a as electric utilities use the same idea on hv lines. Either a metal or plastic spiral that goes around the wire is used to break up the vortices. On a large diameter wire (1.5-2" diameter) the
not after since Have I missed it, or have you ignored the question??? In any case here is the basic, very basic, question again: How do you design elements so they don't vibrate? David Robbins K1TTT
Thank you, then I choose to not believe unsubstantiated claims. David Robbins K1TTT e-mail: mailto:k1ttt@arrl.net web: http://www.k1ttt.net AR-Cluster node: 145.69MHz or telnet://dxc.k1ttt.net here "
to promblem,whatever.I one could does well, by golly, and gosh darn, I can beat that tale of neighbors... and I ain't even lived here my whole life yet, only about 20 years or so and I still don't k
You mean I have been chanting 'Ohmmmmmmmmm' all this time for nothing?!?!?! David Robbins K1TTT e-mail: mailto:k1ttt@arrl.net web: http://www.k1ttt.net AR-Cluster node: 145.69MHz or telnet://dxc.k1t
Even if you can't be here try to check out the live tower party at http://www.k1ttt.net/webcam/, camera 1 should have a good view of most of the action. Work should start on 7/5 about 12z on replacin
Well, I hope you were watching early... we started promptly at 12z, took down the telrex with the broke boom and put up one of the new m2 ones at 90'. But the wind was too strong to do anything highe
Well, we are going to try again... Sunday morning starting about 8am we will try one more time to get the 6 ele 20m down and the last 2 new ones up. Please let me know if you plan on coming. If you c
Well, the live webcast was kind of a bust. About 15 minutes after we got started the router appears to have crashed. Pictures of the tram arrangements and moving the antennas will be on the web site
I just use 1/4" ehs the same as my guy wires. I can use (and reuse) the same guy grips and other hardware, and it holds up just fine... besides, it was just leftovers from putting up a tower so it wa
I the biggest problem with that is trying to explain to them why your pipe is full of foam! 1/2" compression fittings work well for 1/2" catv hardline to pl259's as described. For 5/8" or 3/4" look
Because the attempts to show this work live on the web didn't work very well here are the pictures that were taken along with a description of the work: http://www.k1ttt.net/2003towerwork.html I have
i don't think so. there is still the conductor there and the dielectric is between them. you can't get rid of the capacitance between them, nor can you get rid of the losses in that capacitor. i wou